# Privacy Policy
**App:** ตรวจหวย - สแกน QR Code (com.x.lottothgov)
**Last updated:** 23 June 2026
ALTDEV ("we", "us", or "our") operates the mobile application
**ตรวจหวย - สแกน QR Code** (the "App"), available on Google Play.
This page informs you of our policies regarding the collection, use, and
disclosure of data when you use our App, and the choices you have associated
with that data.
By using the App, you agree to the collection and use of information in
accordance with this policy.
## Information We Collect
### Advertising ID and Device Identifiers
Our App uses **Google AdMob** (Google Mobile Ads SDK) to display
advertisements. To serve and measure ads, AdMob collects and processes the
device's **Advertising ID** and other device identifiers. This information may
be shared with Google and its advertising partners to deliver and measure
advertising, prevent fraud, and analyze ad performance.
You can reset or limit your Advertising ID at any time in your device settings:
**Settings → Google → Ads**.
Learn more about how Google uses this data:
https://policies.google.com/technologies/partner-sites
### Camera (QR Code Scanning)
The App requests **camera** permission so you can scan lottery ticket QR codes.
Images from the camera are processed **on your device only** to read the QR
code. We do **not** upload, store, or transmit camera images or photos to any
server.
### Lottery Data Requests
The App connects to our servers to download public Thai government lottery
results and related images. These requests do **not** include any personal
information about you.
### Locally Stored Data
The App may store your saved/checked lottery numbers locally on your device
(using Android SharedPreferences). This data stays on your device and is **not**
transmitted to us.
## How We Use Information
- To display advertisements through Google AdMob.
- To measure and improve advertising performance (analytics).
- To provide core App functionality (checking lottery results, scanning QR codes).
## Data Sharing
We share the **Advertising ID / device identifiers** with **Google AdMob** and
its partners solely for advertising and analytics purposes, as described above.
We do not sell your personal information.
## Third-Party Services
The App uses the following third-party service that may collect information:
- **Google AdMob** — https://support.google.com/admob/answer/6128543
(Google Privacy Policy: https://policies.google.com/privacy)
## Data Retention and Deletion
We do not maintain user accounts and do not store personal data on our servers.
You can reset your Advertising ID or opt out of ad personalization at any time
in your device settings (**Settings → Google → Ads**). You can also clear
locally stored data by clearing the App's data or uninstalling the App.
## Security
We use HTTPS (encrypted connections) for all data transmitted by the App.
However, no method of transmission over the Internet or electronic storage is
100% secure, and we cannot guarantee absolute security.
## Children's Privacy
Our App is not directed to children under the age of 13. We do not knowingly
collect personal information from children under 13. If you believe a child has
provided us with personal information, please contact us so we can remove it.
## Changes to This Privacy Policy
We may update this Privacy Policy from time to time. Changes are effective when
posted on this page. You are advised to review this Privacy Policy periodically.
## Contact Us
If you have any questions about this Privacy Policy, please contact us:
**Email:** stp.ros.18@gmail.com